Ornamental-stitch sewing-machine.



V. J. VAN HORN.

ORNAMENTAL STITCH SEWING MACHINE.

1,166,2?, Patented Dec. 28, 1915.

3 SHEETSSHEET APPLICATION FILED FEB. 13, I911.

i nu" Erma/Mo's conumlun PLANOGRAIH (ID-,WASHINOTON, u. c

V. J. VAN HORN.

ORNAMENTAL STITCH SEWING MACHINE.

APPLICATION FILED FEB. 13, I911.

Patented Dec 28, 1915.

3 SHEETS-SHEET 2.

wilueo oeo ioLuMum PLANOGRAPH Gil-,WASHINDTON. D. C.

V. J. VAN HORN.

ORNAMENTAL STITCH SEWING MACHINE.

APPLlCATlQN FILED FEB. 13, 191 I.

Patented Dec. 28, 1915.

3 SHEETS-SHEET 3- nOl-UMBM l'umoclmu co, WASHINGTON. D. c.

lUFillTD ST A FTO.

VANDIVER J. VAN HORN, OF CHICAGO, ILLINOIS, ASSIGNOR TO UNION SPECIALMACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

ORNAMENTAL-STITCH SEWING-MACHINE.

Application filed February 13, 1911.

To all whom it may concern Be it known that I, VANDIVER J. VAN HORN, acitizen of the United States, residing at Chicago, in the county ofCook, State of Illinois, have invented certain new and usefulImprovements in Ornamental-Stitch Sewing-Machines, of which thefollowing is a description, reference being had to the accompanyingdrawing, and to the letters and figures of reference marked thereon.

The invention relates to new and useful improvements in ornamentalstitch sewing machines of the type shown in my Patent No. 1,184,56 l,dated April 6th, 1915.

An object of the invention is to provide a sewing machine with threadmanipulating devices whereby an ornamental stitch including a series ofhalf twisted loops laid on the surface of the fabric is formed.

A further object of the invention is to provide a sewing machine, havinga plurality of needles, with a thread guide for guiding an ornamentalthread to be secured to one surface of the fabric, and withcooperatingthread engaging hooks, one of which engages the ornamental thread andforms a loop therein while the other engages a limb of the loop in saidornamental thread and carries it to the rear of the needle, whereby saidornamental thread is formed into a series of loops which are secured tothe surface of the material.

These and other objects will in part be obvious, and will in part behereinafter more fully described.

In the drawings which show by way of illustration one embodiment of theinvention; Figure 1 is a view of the forward end of a sewing machineshowing the needles and the device for manipulating the ornamentalthread. Fig. 2 is a sectional view through the machine, showing themechanism for vibrating the thread engaging devices. Fig. 3 is a viewtaken on the line 3-3 of Fig. 1, looking toward the head of the machine.Fig. 4 is a perspective view of the stationary thread guide. Fig. 5 is atop plan view of one of the arms supporting one of the thread carryingdevices. Fig. 6 is a detail view showing one position of the threadmanipulating devices relative to the needles. Fig. 7 is a view similarto Fig. 6, showing another position of the thread manipulating devices.Fig. 8 is a view similar to Fig. 6, showing still another position ofSpecification of Letters Patent.

Patented Dec. 255, 1915..

Serial No. 608,365.

In the drawings, the bed plate 1, of the sewing machine, carries theusual overhanging arm 2 which supports a needle lever 3 vlbrating aneedle bar l at the head of the machine in the usual manner. These partsare of the ordinary construction, and will not need further description.

The needle bar 4 carries in the present embodiment of my invention twoneedles 5, 5. The presser foot 6, is carried by the presser bar 7, andthese parts are also of the usual construction.

A stationary thread guide 8 shown in perspective view in Fig. 4, issecured to the overhanging arm by means of a screw 9, which passesthrough an opening 10 in the inner end of said thread carrier. Saidthread carrier extends outward from said screw 9, and is then bentdownward. At its lower end the thread carrier is bent laterally as at 11and provided with a thread guiding eye 12. This thread guide is for theornamental thread which is to be secured to the fabric and said threadafter passing through the thread guide, may if desired, be passedunderneath a tension spring 13 carried by the thread guiding arm 8 andthrough an opening 14: in said thread guiding arm and from thence to athread guide 15 carried by the upper end of the needle bar. Said threadis then passed underneath a stationary thread guiding wire 16, mountedon the head of the machine, and is then led to the rear of the machine,and through a tension device if desired, in the usual manner. Theneedles 5, 5, are threaded in the usual manner and any suitablecomplemental stitch forming mechanism cooperates therewith, whereby aplurality of parallel lines of stitching on the upper face of the fabricmay be produced.

The first implement to engage the ornamental thread passing through theguide eye 12-, is a thread carrying hook 17, which is carried by acurved arm 18, shown in detail in Fig. 5. Said curved arm 18 extends tothe rear of the machine where it is mounted on a supporting stud 19 (seeFig. 3). Said supporting stud 19, carries a projecting arm 20 to whichis connected a link 21. The other end of the link 21 is pivotallyconnected to an arm which is rigidly connected to a shaft 22, mounted insuitable bearings in the rear side of the machine.

The shaft 22 as shown in Fig. 2 carries a slotted arm 23 to which a.link 21 is connected by means of a stud and nut 25. The link24 is at itsother end connected to an eccentric 26 carried by a gear wheel 27, whichin turn cooperates with a gear wheel 28 mounted on-the mainshaft 29.-The size oi -the: gear wheels 27 and28are such that the arm .18 is movedfrom one side of the line of feed to another,-:for each up anddew-nmovement of the needle bar. In other words, the needle barreciprooates twice to one reciprocation of the arm=18. The threadcarrying h'ook' 17 is secured in a depending shank 30 carried by-the arm18 by means of a-set-serew Said hook 17 at its lower end is bentlaterally and at its. outer end is bent away from the thread guiding eye12 as the parts are positioned in F 1, so as to provide a hook whichwill engage the ornamental=thread when-said thread carrying hook movesunderneath the thread guiding g L M --The parts above described are sopositioned' and timed :that thethread guiding hook 17 moves from aposit-ion slightly at 80 Jthe right of the thread guiding eye 12, to apositio-n-at-some distance-beyond the left. hand needle as viewed in-Fig. 1. This movement of the'thread hook 17 will form a loop in-theornamental thread, one limb aof jthe loo'p :(see Fig. 7 extending fromthe hook to the thread guidingfeye l2- and the other limb b of the loopextending to the materialwhere it-has been secured by the previousneedle-stitches. a.

) Cooperating with the thread hook 17 and thethread guiding arm 8, is asecond thread hook 232. his thread hook-is mounted on shaftf33carried-bya'bracket 31 mounted onthe headwof the machine. The shat-t3?)carries a projectingfarm' 35 to whichiis connected a link 36 (see h1g3);The other end ofvthe link 36 is connected to a depending arm 37 which inturn is mounted on a sleeve 38 carried by' the shaft 22.: it J H e-t i'lhe sleeve 38 carriesan arrn..39.which in "turnw'i's pivotally Iconnectedrwith linkA-O dooperat-ingwitha n eccentric 1 11 on-the mainsha ft 29: Thethreadguiding hook 3?. is clamped to the lower end of theshaft'38 by ai'set screwt2 Said arm extends outward from? the shaft 33,and is then bent. down- "ward ,thence'laterallyas at 42. The-free end of-theportion 42 isbentrdownward .touform 'a hook l g whieh engages theornamental thread; *Said threadi hook.-32"isso positioned" and timed,that: the ,hook e3 carried thereby is' IHOVGCl fBOIlla'position in frontof the thread-extendingwfromthe hook 17 to ithe'thre'ad eye 12;,When'the-hook 17 is at the left of the needles, as viewed in Fig. 7, to2.

position in rear thereof as shown in Figs. (3 and S. Said hook 43 isalso positioned so that it moves over the loop of thread formed in theornamental thread by the hook 17. Inasmuch as the limb b of the loopextends from the hook 17 downward to the fabric, said limb would be outof the path of the hook 48 while the other limb a will lie in the pathof the hook -13. hen therefore, the hook 17 is in the position shown inFig. 7, the hook 13 will engage the portion (a of the ornamental threadand carry the. same entirely in. rear of two needles. .These movementsresult in forming a halt twisted loop of thread. The needles as clearlyshown in Figs. 6 to 8 inclusive are arranged slightly diagonal. of theline of feed so that successive needle punctures a, 0, and o, c", asshown in Fig. 9 will be formed. When the needles are raised out of theneedle punctures c, c, and are about totform the needle punctures c, .0,the hook 17 carries the ornamental thread to the position shown in Fig.7, and then the hook engages the limb a. of the loop and carries it tothe rear of the path of the needles so that the punctures 0, 0 will betormedat the left of the portiono of the thread, and the thread runningfrom the needle punctures 0 to a will bind the ornamental thread to theupper face of the fabric.

Thestroke of the hook 17 is sullieient so as to draw 1f sutlicientthread to form what may be termed an extended. loop and therefore, theneedle puncture 0? of the left hand needle in F 1. will enter again intothe loop formed in the ornamental thread, while both the needlepunctures e and 0 of the right hand needle, will be behveensuccessiveloops. lVhen it is desired to increase the throw of the hook 17 in orderto further extend the loop in the ornamental.thread, the connectionbetween the; link 2-1 and the slotted arm 23 may be shifted Asclearly-shown in Fig.6, the presser foot is provided witha rearwardlyprojecting portion 4-4, which extends between the needles and which willaid in positioning the loop in the ornamental thread, after it has beendropped bythe-hook 17. so that the second downward movementot the lefthand needle will enter said extended loop. hile I have herein shown anddescribed themovements of the hooks as capable of formin-ga particularstitch, it evident from certain aspects of the invention, the hooks maybe given a slightly different tim ing or a slightly diiiercnt movementrelative toeach other. a Having thus particularly, described myinvention, what I claim as new and desire to secure by LettersPatent, is

1; Asewing machine comprising in C0111- bination, stitch-formingmechanism including a plurality of needles, :1 thread guide 1,166,278lill;

for guiding an ornamental thread, a threadcarrying hook engaging saidornamental thread between the thread guide and the material and forminga loop in said ornamental thread, and a second thread-guiding hookmovable independently of said thread guide for simultaneously engagingone limb of said loop and carrying the same to a position in rear of thepath of the needles.

2. A sewing machine comprising in combination, stitch forming mechanism,including a plurality of needles, a stationary thread guide located atone side of said needles, a thread carrying hook engaging the threadcarried by said thread guide and moving in front of the needles to aposition at the opposite side thereof from the thread. guide and asecond thread hook cooperating with said first named hook and threadguide and moving from a position in front of said needles to a positionin rear thereof.

3. Ilhe combination with a plurality of needles, a thread guide forguiding an ornamental thread, a thread carrying device cooperating withsaid thread guide, means for giving said thread carrying device and saidthread guide a relative movement whereby a loop of thread is formedextending from one side of the needles to the other side thereof, and athread engaging device movable independently of the first named threadguide and moving at an angle to the path of movement of saidthread-carrying device for engaging, and carrying one limb of said loopto the rear of the path of said needles.

4. The combination with a plurality of needles, a thread guide forguiding an ornamental thread, a thread hook for engaging the ornamentalthread between the thread guide and the material, means for moving saidhook whereby an extended loop is formed in said ornamental thread and athread engaging device moving at an an le to the path of movement ofsaid hook for engaging and carrying one limb of the loop to the rear ofthe path of the needles, whereby said extended loop is positioned sothat one of said needles will enter twice into said loop.

5. The combination With stitch forming mechanism, a stationary threadguide for guiding an ornamental thread, a thread hook, means forsupporting said hook whereby the same moves in a path below said threadguide, and in front of said needles, a second thread carrying hook andmeans for supporting said second thread carrying hook, whereby it movesin a path intersecting the plane of the needles and across a linepassing through said first named hook and said thread guide.

6. The combination with a plurality of needles, of a stationary threadguide located at one side of said needles for guiding an ornamentalthread, a thread engaging hook for engaging the ornamental threadbetween said thread guide and the material, means for moving said threaden gaging hook from one side of said needles to the other in a path infront of said needles, second thread engaging hook moving in a pathbetween said needles, and from a position in front of the first namedthread carrying hook to a position in rear of said needles.

7. The combination with a plurality of needles, of a thread guide forguiding an ornamental thread, a thread carrying hook for engaging theornamental thread between the thread guide and the material, means formoving said thread hook from a position at one side of said needles, toa position at the other side of said needles, a thread engaging devicefor engaging the thread between said hook and said thread guide, andcarrying the same to a position in rear of the needles, and meanswhereby the stroke of the first named thread hook may be varied.

S. The combination with a plurality of needles, a presser foot, arearwardly projecting portion carried by the presser foot and extendingbetween the needles, a stationary thread guide located at one side ofsaid needles for guiding an ornamental thread, a thread hook forengaging the thread between said thread guide and the material, andmoving to the other side of the needles, means for moving said hookwhereby an extended loop is formed in the ornamental thread, a threadengaging de vice for carrying one limb of said loop to the rear ofthepath of said needles, said projection on the presser foot operatingto position said extended loop after released by the hook, whereby oneof said needles will enter a second time into said loop.

In testimony whereof I affix my signature, in presence of two witnesses.

VANDIVER J. VAN HORN.

Witnesses:

GEORGE N. B. Lowns, EARL O. IMMEL.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). C. I

